Abstract

The effect on perceived size of changes in accommodation and convergence was determined at various observation distances. Accommodation and convergence were varied by lenses and prisms chosen so as to preserve the normal relationship between these two functions for all conditions of observation. For observation distances up to about one meter, perceived size is proportional to the distance at which the accommodation and convergence in force would normally obtain. At greater distances, this relationship becomes progressively less marked. It is concluded that accommodation and convergence could mediate size constancy only at observation distances of one meter or less, and that other mechanisms must be operative at greater distances of observation.

© 1966 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Effects of Exposure Duration, Cue Reduction, and Temporary Monocularity on Size Matching at Short Distances*

Lewis O. Harvey and H. W. Leibowitz
J. Opt. Soc. Am. 57(2) 249-253 (1967)

Oculomotor contribution to the change in perceived speed with viewing distance

George A. Geri, Byron J. Pierce, and Robert Patterson
J. Opt. Soc. Am. A 25(11) 2851-2857 (2008)

Dynamics of the near response under natural viewing conditions with an open-view sensor

Emmanuel Chirre, Pedro Prieto, and Pablo Artal
Biomed. Opt. Express 6(10) 4200-4211 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (1)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription